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SubjectRe: [PATCH 2/8] ACPI, CPER: Update cper info
On Tue, Oct 15, 2013 at 11:47:23PM +0530, Naveen N. Rao wrote:
> Date: Tue, 15 Oct 2013 23:47:23 +0530
> From: "Naveen N. Rao" <naveen.n.rao@linux.vnet.ibm.com>
> To: "Chen, Gong" <gong.chen@linux.intel.com>
> Cc: tony.luck@intel.com, bp@alien8.de, linux-kernel@vger.kernel.org,
> linux-acpi@vger.kernel.org
> Subject: Re: [PATCH 2/8] ACPI, CPER: Update cper info
> User-Agent: Mutt/1.5.21 (2010-09-15)
>
> On 2013/10/11 02:32AM, Chen Gong wrote:
> > To satisfy the necessary of following patches and make related definition
> > more clear, update some definitions about CPER. No functional changes.
> >
> > Signed-off-by: Chen, Gong <gong.chen@linux.intel.com>
> > ---
> > drivers/acpi/apei/apei-internal.h | 12 ++++-----
> > drivers/acpi/apei/cper.c | 46 ++++++++++++++++-----------------
> > drivers/acpi/apei/ghes.c | 54 +++++++++++++++++++--------------------
> > include/acpi/actbl1.h | 14 +++++-----
> > include/acpi/ghes.h | 2 +-
> > 5 files changed, 64 insertions(+), 64 deletions(-)
> >
> > diff --git a/drivers/acpi/apei/apei-internal.h b/drivers/acpi/apei/apei-internal.h
> > index f220d64..21ba34a 100644
> > --- a/drivers/acpi/apei/apei-internal.h
> > +++ b/drivers/acpi/apei/apei-internal.h
> > @@ -122,11 +122,11 @@ struct dentry;
> > struct dentry *apei_get_debugfs_dir(void);
> >
> > #define apei_estatus_for_each_section(estatus, section) \
> > - for (section = (struct acpi_hest_generic_data *)(estatus + 1); \
> > + for (section = (struct acpi_generic_data *)(estatus + 1); \
>
> This is a good one to rename, though I wonder if acpi_generic_error_data
> is more appropriate?
>
> > (void *)section - (void *)estatus < estatus->data_length; \
> > section = (void *)(section+1) + section->error_data_length)
> >
> > -static inline u32 apei_estatus_len(struct acpi_hest_generic_status *estatus)
> > +static inline u32 cper_estatus_len(struct acpi_generic_status *estatus)
>
> Not sure I understand the rationale for these changes - we are still
> dealing with ACPI/APEI generic error status/data structures. So, why
> the cper_ prefix?
>

Because CPER is not APEI specific, beside APEI, some others like eMCA
needs this.

> > {
> > if (estatus->raw_data_length)
> > return estatus->raw_data_offset + \
> > @@ -135,10 +135,10 @@ static inline u32 apei_estatus_len(struct acpi_hest_generic_status *estatus)
> > return sizeof(*estatus) + estatus->data_length;
> > }
> >
> > -void apei_estatus_print(const char *pfx,
> > - const struct acpi_hest_generic_status *estatus);
> > -int apei_estatus_check_header(const struct acpi_hest_generic_status *estatus);
> > -int apei_estatus_check(const struct acpi_hest_generic_status *estatus);
> > +void cper_estatus_print(const char *pfx,
> > + const struct acpi_generic_status *estatus);
> > +int cper_estatus_check_header(const struct acpi_generic_status *estatus);
> > +int cper_estatus_check(const struct acpi_generic_status *estatus);
>
> Same here. All the above functions work on ACPI structures...
>
> > /* Values for block_status flags above */
> >
> > -#define ACPI_HEST_UNCORRECTABLE (1)
> > -#define ACPI_HEST_CORRECTABLE (1<<1)
> > -#define ACPI_HEST_MULTIPLE_UNCORRECTABLE (1<<2)
> > -#define ACPI_HEST_MULTIPLE_CORRECTABLE (1<<3)
> > -#define ACPI_HEST_ERROR_ENTRY_COUNT (0xFF<<4) /* 8 bits, error count */
> > +#define ACPI_GEN_ERR_UC (1)
> > +#define ACPI_GEN_ERR_CE (1<<1)
> > +#define ACPI_GEN_ERR_MULTI_UC (1<<2)
> > +#define ACPI_GEN_ERR_MULTI_CE (1<<3)
> > +#define ACPI_GEN_ERR_COUNT_SHIFT (0xFF<<4) /* 8 bits, error count */
>
> I'd prefer ACPI_GENERIC_ERR_ since ACPI_GEN_ERR sounds far too much like
> ACPI "Generated" :)
>
>
> Thanks,
> Naveen
>
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